Hi Not quite sure what the units on “expensive” should be in the case of an Rb standard. We get used to surplus prices on a lot of stuff and that can skew the “calibration” a bit.
Sell price on a Telecom Rb depends more than a little on how many you are buying. In modest quantities (100’s at a time) they rarely get below $1,000. Even after a number of years on the market, the CSAC still is a unique part. I’ve had other parts of a similar size on the bench, they aren’t on the market yet. Those units didn’t hit CSAC power levels. There are other parts talked about here and there, but none on the market … I’d say they are fairly priced for what they are. Bob > On Jan 31, 2020, at 12:28 AM, Andre <[email protected]> wrote: > > > Interesting project. Would a CSAC actually fit? > > Last I heard these are ridiculously expen$ive (£1000+) assuming you can get > one. > They are also restricted in some countries it seems. > > -Andre > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 30 Jan 2020 12:29:56 -0500 > From: Bob kb8tq <[email protected]> > To: Discussion of precise time and frequency measurement > <[email protected]> > Subject: Re: [time-nuts] Cesium Mechanical Chronometer > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8 > > Hi > > There?s not a lot of ?room? inside the typical Hamilton chronometer. Simply > getting > an electronic drive gizmo inside (and wires out) would be a major task. > Having it work > properly with the drive coming and going ?.wow ?. The detent setup is a very > fiddly > bit in these devices. > > My *guess* is that a CSAC on a couple of batteries will run longer than the > chronometer > (before it needs to be wound). If auto winding is part of the mix, that gets > even more into the > ? wow ? region. > > Bob > > > End of time-nuts Digest, Vol 186, Issue 41 > ****************************************** > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
